Apparatus for casting metal sheets.



No. 857,885. PATENTED JUNE 25, 1907.

J. P. MILLER. APPARATUS FOR GASTING METAL SHEETS.

APPLICATION FILED MAY 24. 1905.

UNITED STATES PA NT OFFICE.

' JOHN F. MILLER, F TRAIL, BRITISH COLUMBIA, CANADA, ASSIGNOR OF ONE-HALF To WALTER H. ALDRIDGE, oF TR IL, BRITISH coL JM.

BIA, CANADA.

APEARATUS F OR CASTING METAL SHEETS.

To all whom it may concern Be it known that I, JOHN F. MILLER, a'

' citizen of. the United States, residing at Trail, in the Province of British Columbia, Dominion of Canada, have invented certain new and useful Im rovements in Apparatus for pasting Metal heets, of which the following is a specification, reference being had vide an apparatus by which uniform, dense sheets may .be cast, ina rapid and eflicient manner. A

In carrying out my invention in its pre-. ferred form, I employ an inclined casting or rectangular form, provided at its sides with upstanding lips or flanges to confine the table, consisting o a plane surface of square molten metal to the bed or table. At the higher end of the table is a pivoted ladle, extending preferably across the entire width 'of the table, so arranged that it may be tilted and its contents thereby discharged upon the table. When thus discharged, the molten metal flows down over the table and solidifies thereon, thus forming the desired sheet, which may then be removed and given further treatment, if any be needed, to prepare it for the purpose intended.

' the accompanyin drawings, in which Fi e 1 is a 5 an view of the apparatus andli g 2 a side elevation. Y

The casting table or bed is indicated by A. This member, in the preferred form of the invention, is of rectangular form as shown, and is provided at each side with a flange, as indicated at B and C. It is sup- Borted in an inclined position b four legs,

E, F and G, suita ly brace if desired. At the higher end of the table is a ladle H,

V Specification of Letters Patent.

Application and m 24, 1905. Serial No- 261,923.

Patented June 25, 1907.

hinged or pivoted to the table, as shown by means of hinges I. The form of the lad e is immaterial, but it should be of such shape as to permit the metal to run freely out when the ladle is raised to the vertical position. The pivots on which it swingls are so arranged as to keep the edge of t e ladle close to or preferably slightly overhanging the ed e ofthe table. A handle J may be provi ed for manipulatinglthe trough or ladle.

The operation of t e apparatus may be briefly described as follows: A quantity of.

molten metal, as for exam 1e 1e sufiicient to form the plate is tappe into or otherwise deposited in the trough and the latter then quickly raised to the position shown in dotted lines in Fig. 2; whereupon the metal runs out upon'the table, (ina transversely un broken stream and not in a number of narrow streams, as might be the case if the metal were discharged throu h spouts or e uivalent orifices), and runs own over the ta le, bein confined thereto by the side flanges. The relatively low temperature of the table and the exposure of the metal to the air over so lar e a surface causes solidification to take p ace rapidly. Assumin the temperature of the bed and that o the molten metal to be constant, the thickney of .the cast plate will do end upon the inclination of the table, which of course may be constructed to have any desired inclination. The angle of the table determines the rate of flow of the metal over it, hence if nearly level the metal will flow slowly and will therefore solidify before it has had time tp spread over a large area. On the other hand, if the table is steeper the metal will flow more quickly and' so be spread over a larger area before-it has time to congeal. The Inclination of the table being the same, the size of the plate will in eneral depend u on the quantit of metal e'positedupon t 1e table, as wil be readily understood.

. Having now described my invention, What IOO Correction in Letters Patent No. 857,885.

2. In an apparatus for easting lead sheets, the combination of a. table having a plane surface-disposed at an inclination to a horizontal plane, flanges at the'sides of the table projecting above the surface i' or confining the material under treatment and a ladle 0f the full width of the table hinged to the same at broken stream of molten mater-in upon the inclined surface.

v JOHN F. MILLER. Witnesses:

J. M. TURNBULL, EMMA DE GAGUE.

- It is hereby certified that in Letters Petent 857 g'ranted'Jurle 25, 1 1507, upon v the application 0f Jolni F. Miller, of TraiL'Bi-itish Ooluinbia, Canada, for an impr o vement in Apparatus for Casting Metal Sheets, an error appears inthe printed spe ciificetion requiring eorreetion, as follows: Page 1, lines 23 and 25 should be trensposed' andthat the said Letters Patent should be read with this correction therein that the? same may conform to the'reeord of the ease the Patent O flie e. V Signed and sealed this 20th day of August, A, D., 1907.

[SEAL-J 0. 0. BILLINGS,

Acting Commissioner of Patents.

the upper edge thereof for discher ing an un- Correction in Letters Patent No. 857,885.

2. In an apparatus for easting lead sheets, the combination of a. table having a plane surface-disposed at an inclination to a horizontal plane, flanges at the'sides of the table projecting above the surface i' or confining the material under treatment and a ladle 0f the full width of the table hinged to the same at broken stream of molten mater-in upon the inclined surface.

v JOHN F. MILLER. Witnesses:

J. M. TURNBULL, EMMA DE GAGUE.

- It is hereby certified that in Letters Petent 857 g'ranted'Jurle 25, 1 1507, upon v the application 0f Jolni F. Miller, of TraiL'Bi-itish Ooluinbia, Canada, for an impr o vement in Apparatus for Casting Metal Sheets, an error appears inthe printed spe ciificetion requiring eorreetion, as follows: Page 1, lines 23 and 25 should be trensposed' andthat the said Letters Patent should be read with this correction therein that the? same may conform to the'reeord of the ease the Patent O flie e. V Signed and sealed this 20th day of August, A, D., 1907.

[SEAL-J 0. 0. BILLINGS,

Acting Commissioner of Patents.

the upper edge thereof for discher ing an un- It is hereby certified that in Letters Patent No. 857,885, granted June 25, 1907, upon the application of Johri F. Miller, of Trail,Britieh Columbia, Canada, for an improvement in "Apparatus for Casting Metal Sheets, an error appears in the printed specification requiring eerrection, asfnllowez Page 1, lines 23 and 26 should be tranepoeed; and that the said Letters Patent should be read with this correction therein that the same may conform to the record of the case in the Patent Oifice.

Signed and sealed this 20th day of August, A, 1)., 1907.

[SEAL] o. o. BILLINGS,

Acting Commissioner of Patents. 

